Trail marathons in Colorado, United States
Find trail marathons in Colorado, United States. Compare 4 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Events to explore include Valkyrie Trail Race, Endure Trail Runs (Colorado) and Weld Your Mettle Running Festival.
5 listed events · 4 with upcoming dates
Upcoming marathons
4 matching events, earliest date first. Entry availability is shown separately.
Valkyrie Trail Race
USAColorado Springs, Colorado
Women-focused trail races in Cheyenne Mountain State Park.
· Marathon
Race details, entry and past editions →Entry information ↗Endure Trail Runs (Colorado)
USADivide, Colorado
Fixed-distance trail races on singletrack and doubletrack in Mueller State Park.
· Marathon · Status TBC
Race details, entry and past editions →Weld Your Mettle Running Festival
USAEaton, Colorado
Loop running races and timed endurance challenges near Eaton.
· Marathon
Race details, entry and past editions →Entry information ↗Summits Trail Runs
USAGranby, Colorado
Mountain trail races at Granby Ranch Resort, with shorter races and ultra distances.
· Marathon · Status TBC
Race details, entry and past editions →Race archive
Past races and previous editions
Looking back at a race? Browse the guides below for recorded editions. This section also includes events awaiting a new date and cancelled editions. Previous editions of races in the upcoming calendar are available through their race guides above.
Pikes Peak Marathon
USAManitou Springs, Colorado
Pikes Peak Marathon in Manitou Springs.
Next date not listed
Race guide and recorded editions →Choosing a race in Colorado
The unfiltered upcoming calendar includes events in Colorado Springs (1), Divide (1), Eaton (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about marathons in Colorado
Which trail marathons are coming up in Colorado, United States?
Valkyrie Trail Race is listed for 8 May 2027. Endure Trail Runs (Colorado) is listed for 15 May 2027 (status to be confirmed). Weld Your Mettle Running Festival is listed for 5 June 2027. Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for Colorado, United States?
Follow the link from the race guide to the organiser or entry provider, where one is available. Check the entry deadline, eligibility and current availability there. A listed race date does not necessarily mean entries are still open.
Why has a race moved out of the upcoming calendar?
Once its listed dates have passed, a race moves to the past-editions view unless another upcoming edition is recorded. Cancelled events also leave the upcoming list. The race guide stays available, and the event returns when a new date is added.